Please answer this question? Nobody on chegg could figure this out or is attempting to try. it is gery frustrating

You observe a premium of $46.00 for a call option on Birdwell Enterprises common stock, which is currently selling for $46. The strike price on the call option is $47. The option has four months to maturity. The stock pays no dividends. The current risk-free interest rate is 3.50%. What is the implied volatility of the stock? (Round your answer to the nearest whole percent.)

Implied volatility %